chrisbiggz
1 µW
- Joined
- Sep 6, 2017
- Messages
- 4
Hi all. First time posting, looking to get myself headed in the right direction. I have a dead BBS02.
Background:
Mid drive BBS02, with a 52v, 13.5 Ah battery pack. 6 months running well. Then I put on the charger, and usually the green light comes on in less than 1 hour but after several hours the red "charging" light was still on. I took it off the charger and couldnt power up the display. Right before this issue came up, the pack that I carry my gear (including the charger) fell off on my ride. I noticed after that there was a tiny rattle inside the charger.
Troubleshooting:
Battery charger output is 58.84v, battery pack is 57.74v. When I plug in the battery, it arcs on the positive side. Then voltage reads 0.0v with it plugged in. Unplugged, it reads voltage again 57 - 58v. Tried to run the motor off the battery charger and the exact same thing described above happens.
I tried bypassing the display by jumping the pins - unsuccessful.
Opened up the controller, found moisture inside due to the gasket not seated fully. Dried it out.
Testing phase wires:
Motor side, ohm across the coils are all 0.3
Controller side, ohm between phase wires and battery supply pos/neg:
Blue = 0.2
Yellow = 4k
Green = 0.2
Controller side ohm between phase wires:
Blue > Green = 0.2
Blue > yellow = 4k
Green > yellow = 4k
Conclusion:
I dont have enough experience / knowledge to say what happened. Seems to be something wrong with the controller side yellow phase. I would really like to know what more experienced minds think happened and whether I should test anything else. Based on what I see I should buy a new battery charger and controller and hope that fixes the issue.
-Chris
Background:
Mid drive BBS02, with a 52v, 13.5 Ah battery pack. 6 months running well. Then I put on the charger, and usually the green light comes on in less than 1 hour but after several hours the red "charging" light was still on. I took it off the charger and couldnt power up the display. Right before this issue came up, the pack that I carry my gear (including the charger) fell off on my ride. I noticed after that there was a tiny rattle inside the charger.
Troubleshooting:
Battery charger output is 58.84v, battery pack is 57.74v. When I plug in the battery, it arcs on the positive side. Then voltage reads 0.0v with it plugged in. Unplugged, it reads voltage again 57 - 58v. Tried to run the motor off the battery charger and the exact same thing described above happens.
I tried bypassing the display by jumping the pins - unsuccessful.
Opened up the controller, found moisture inside due to the gasket not seated fully. Dried it out.
Testing phase wires:
Motor side, ohm across the coils are all 0.3
Controller side, ohm between phase wires and battery supply pos/neg:
Blue = 0.2
Yellow = 4k
Green = 0.2
Controller side ohm between phase wires:
Blue > Green = 0.2
Blue > yellow = 4k
Green > yellow = 4k
Conclusion:
I dont have enough experience / knowledge to say what happened. Seems to be something wrong with the controller side yellow phase. I would really like to know what more experienced minds think happened and whether I should test anything else. Based on what I see I should buy a new battery charger and controller and hope that fixes the issue.
-Chris